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Chapter 5 it's not a big deal
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... hen I was in college, I had an internship in a welding factory in other provinces, and I knew more or less about welding problems. Just now, Master Hua said that the problem of 'air holes' is common in the industry, and I agree with this."
"Because there are indeed many welding factories, in order to save trouble, they did not pay too much attention to this issue. After all, one or two 'air holes' will not have much impact on the use of most weldments."
"But as far as our pro ...
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